Question

A patient with chronic obstructive pulmonary disease (COPD, eg, emphysema, chronic bronchitis) is receiving an orally inhaled muscarinic receptor-blocking drug to maintain bronchodilation. What drug belongs to that class?

a. Albuterol
b. Diphenhydramine
c. Ipratropium (or tiotropium)
d. Pilocarpine
e. Vecuronium

Answer 1

Ipratropium or Tiotropium are the drugs used as orally inhaled muscarinic receptor-blocking agents to maintain bronchodilation in COPD patients.

Step-by-step explanation:

The drug that belongs to the class of orally inhaled muscarinic receptor-blocking drugs, which are used to maintain bronchodilation in a patient with chronic obstructive pulmonary disease (COPD), such as emphysema or chronic bronchitis, is Ipratropium (or Tiotropium). These drugs work by blocking the action of acetylcholine on muscarinic receptors in the airways, which reduces bronchoconstriction and helps to open up the airways. This class of medications is a cornerstone in the management of COPD symptoms.